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litespeed_wiki:cache:no-plugin-advanced:reverse-proxy [2020/04/14 19:29] Jackson Zhang |
litespeed_wiki:cache:no-plugin-advanced:reverse-proxy [2020/04/14 19:30] (current) Jackson Zhang |
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| - | ====== Setup LSWS as cache reverse proxy ====== | ||
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| - | ===== Summary ===== | ||
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| - | LSWS can be setup as reverse proxy since earlier version (2.0). It can integrate with built-in cache to provide cache reverse proxy. This setup extends the benefit of LSCache for backends that are not necessarily using LSWS. It also provides the benefit of LSWS anti-ddos as well. | ||
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| - | ===== Steps ===== | ||
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| - | ==== 1. Create Web Server External App ==== | ||
| - | <file> | ||
| - | Admin CP => Configuration => Server => External App | ||
| - | Type: Web Server | ||
| - | Name: test-proxy | ||
| - | Address: 10.1.2.3:80 | ||
| - | Max Connections: 150 | ||
| - | Initial Request Timeout (secs): 60 | ||
| - | Retry Timeout (secs): 0 | ||
| - | </file> | ||
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| - | **Note:** | ||
| - | * Max Connections is for 1-CPU core. In other words, for a Web Host Professional license, the total Max Conn is 300 (150x2). | ||
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| - | ==== 2. Create vhost for the proxy service ==== | ||
| - | <file> | ||
| - | Admin CP => Configuration => Virtual Hosts | ||
| - | Basic | ||
| - | ===== | ||
| - | Base | ||
| - | Virtual Host Name: proxy-vhost | ||
| - | Virtual Host Root: $SERVER_ROOT/proxy/ | ||
| - | Config File: $VH_ROOT/conf/vhconf.xml | ||
| - | Connection | ||
| - | Max Keep-Alive Requests: 1000 | ||
| - | Security | ||
| - | Follow Symbolic Link: No | ||
| - | Enable Scripts/ExtApps: No | ||
| - | Restrained: Yes | ||
| - | Leave default for the rest. | ||
| - | </file> | ||
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| - | <file> | ||
| - | General | ||
| - | ======= | ||
| - | General | ||
| - | Document Root: $VH_ROOT/html/ | ||
| - | </file> | ||
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| - | ==== 3. Create vhost level context ==== | ||
| - | <file> | ||
| - | Admin CP => Configuration => Virtual Hosts => Context | ||
| - | Type: proxy | ||
| - | URI: exp: /* | ||
| - | Web Server: [Server Level]: test-proxy | ||
| - | Leave default for the rest. | ||
| - | </file> | ||
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| - | ==== 4. Map vhost to listener ==== | ||
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| - | ==== 5. Enable cache for the vhost (proxy) ==== | ||
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| - | 5a. Enable cache at Server Level | ||
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| - | 5b. Set up cache policy at vhost Level | ||
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| - | ==== 6. Enable Per Client throttling for vhost (for http level anti-ddos) ==== | ||
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| - | **Note:** | ||
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| - | - Some of the configuration settings (vhost name, IP addresses, etc) shown in the screenshots are meant for illustration purposes only. | ||
| - | - The set up has been tested and worked on a production server running varnish+nginx+tomcat+postgresql, being able to defend 20000 requests/sec HTTP ddos attacks (with LiteSpeed Advance Anti-DDoS setup). | ||
| - | - Above setup can be easily extended to support proxy'ing multiple backends with each vhost (with its own web server type context) per each backend. | ||
| - | - The setup mentioned above can easily be extended to support load balancing multiple backends by creating a loadbalancer context at vhost level based on a loadbalancer external app (server or vhost level) with proxy::backend* being its worker. | ||